# Service bulletin A18\-121

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10149646
- Published by NHTSA: 2018\-12\-03
- Manufacturer's number: A18\-121
- Manufacturer's date: 2018\-11\-06
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Service bulletin \- The Bluetooth ® HandsFreeLink ® \(HFL\) system freezes after a phone call, and the stored voice tags are missing when the ignition is turned to ON. Some audio units are not updated to the latest software version.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10149646-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10149646-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2016 to 2017 HONDA PILOT

## Recalls for the same vehicles and component

- [15V668000](/recalls/nhtsa/15V668000.md), 2015-10-16: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [A23\-023](/bulletins/10234629.md), 2023-04-22, Service bulletin: ELECTRICAL SYSTEM:STARTER ASSEMBLY; ENGINE AND ENGINE COOLING. Service Bulletin \- The engine will not crank on initial startup after precipitation and sub\-freezing temperatures. Water can enter the starter motor, and when temperatures drop below freezing, the water will freeze inside the starter motor. This will prevent the starter from cranking the engine.
- [A23\-008](/bulletins/10231048.md), 2023-02-03, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Service Bulletin \- Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
- [ATI\&01192023](/bulletins/10230594.md), 2023-01-25, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017\-2018 Odyssey, Pilot, Ridgeline with a customer complaint of the vehicle running rough or in low power mode with the Malfunction Indicator Light \(MIL\) on with one or more of the DTC listed below \(in Qualifiers\) stored. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- [ABOM01062023](/bulletins/10229678.md), 2023-01-11, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM. Dealer Message \- During development, the idle stop enable criteria was mis\-set allowing idle stop to improperly engage while battery health is low. Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not automatically restart. In most cases, the client can immediately restart the vehicle by selecting Park and pushing the Start button.
- [A23\-009](/bulletins/10229676.md), 2023-01-11, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR; ELECTRICAL SYSTEM:SOFTWARE. Service Bulletin \- Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the customer can immediately restart the vehicle by selecting Park and pressing the ENGINE START/STOP button. NOTE: If 23\-008 Product Update: PGM\-FI Idle Stop Software Update is applicable to the VIN, the PGM\-FI software must be updated first before the warranty extension applies. Honda is extending the warranty coverage for valve adjustment and starter replacement related to this condition to 10 years from the original date of purchase with no mileage limitation.
- [A23\-008](/bulletins/10229675.md), 2023-01-11, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR. Service Bulletin \- Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE START/STOP button.
- [15074](/bulletins/10211595.md), 2022-05-09, Service bulletin: ELECTRICAL SYSTEM. During manufacturing, the gauge control module software installed did not meet specification and there are two potential issues: ? The gauge control module adds mileage to the odometer when the OFF mode is selected \(Touring and Elite only\). ? The gauge control module loses communication with the HDS or may not transfer the odometer mileage and maintenance minder information when replacing the gauge control module. There is one software update that will repair one or both of the issues affecting your vehicle.
- [ATI\&10202021901](/bulletins/10202599.md), 2021-10-28, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Dealer Message \- American Honda Motor Co., Inc. \(AHM\) is searching for certain 2017 Odysseys, Pilots \& Ridgelines with a customer complaint of the Malfunction Indicator Light \(MIL\) on with the DTC P2652 \(Rocker Arm Oil Pressure Switch B \[Bank 1\] Stuck On\) \& P3400 \(Valve Pause System \[VPS\] Stuck Off Bank 1\) stored. Customer may also complain of rough engine running conditions. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
- [SB\-15\-072 02720](/bulletins/10193291.md), 2021-05-14, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. BACKGROUND There is a software problem within the audio\-navigation unit that may cause the display screen, including any video images, to go blank and the unit to stop working
- [JW0\-15\-074](/bulletins/10193159.md), 2021-05-13, Service bulletin: FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. During manufacturing, the gauge control module software installed did not meet specification and there are two potential issues: • The gauge control module adds mileage to the odometer when the OFF mode is selected \(Touring and Elite only\). • The gauge control module loses communication with the HDS or may not transfer the odometer mileage and maintenance minder information when replacing the gauge control module. There is one software update that will repair one or both of the issues affecting your vehicle.

JSON: [/v1/bulletins/10149646](/v1/bulletins/10149646)

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